1773219 - Make the sync of tabs done on tab opens and switches more efficient

Status: RESOLVED FIXED

(Firefox :: Sync, enhancement)

Description

[Mark Hammond [:markh] [:mhammond]]

We are now syncing far more frequently on tab opening, switching etc, but it's quite inefficient and causing unexpected load on the sync servers.

This patch leverages the fact that a tabs record is only ever written by the device that owns it, so it's able to perform a POST of the tabs without the dances needed by "normal" syncs.

Comment 1

[Mark Hammond [:markh] [:mhammond]]

Attachment: Bug 1773219 - more efficent tab syncing on tab opening/switching/etc. r?skhamis

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/c8d1ebf43e8c
more efficent tab syncing on tab opening/switching/etc. r=skhamis

Comment 3

[Marian-Vasile Laza]

https://hg.mozilla.org/mozilla-central/rev/c8d1ebf43e8c

Comment 4

[Mark Hammond [:markh] [:mhammond]]

Comment on attachment 9280202 [details]
Bug 1773219 - more efficent tab syncing on tab opening/switching/etc. r?skhamis

Beta/Release Uplift Approval Request

• User impact if declined: This patch should reduce the load on the sync servers such that we roll out better tab syncing to the entire Firefox population.
• Is this code covered by automated tests?: Yes
• Has the fix been verified in Nightly?: Yes
• Needs manual test from QE?: No
• If yes, steps to reproduce:
• List of other uplifts needed: None
• Risk to taking this patch: Low
• Why is the change risky/not risky? (and alternatives if risky): Risk is limited to tabs syncing. Sync team is monitoring client telemetry closely
• String changes made/needed: None
• Is Android affected?: No

Comment 5

[Pascal Chevrel:pascalc]

Comment on attachment 9280202 [details]
Bug 1773219 - more efficent tab syncing on tab opening/switching/etc. r?skhamis

Approved for 102 beta 8, thanks.

Comment 6

[Pascal Chevrel:pascalc]

https://hg.mozilla.org/releases/mozilla-beta/rev/0faacb2c3a36